Simultaneous Nadir Overpasses (SNOs) Predictions
Prediction of SNOs between NOAA-21 and METOP-C Satellite Orbit:
Table of predicted SNOs for the next 14.0 days since TLE Epoch: 7/15/2025
| Index | Date (NOAA-21) | Time (NOAA-21) | Lat,Lon (NOAA-21) | SZA (NOAA-21 ) | Date (METOP-C) | Time (METOP-C) | Lat,Lon (METOP-C) | SZA (METOP-C ) | Distance(km) | Time Diff (sec) |
| 1 | 07/20/2025 | 05:49:51 | -73.45, -97.13 | 126.87 | 07/20/2025 | 05:50:57 | -73.41, -94.17 | 127.10 | 93.93 | 66 |
| 2 | 07/20/2025 | 06:40:32 | 73.22, 70.71 | 52.87 | 07/20/2025 | 06:41:41 | 73.17, 72.63 | 52.70 | 62.23 | 69 |
| 3 | 07/20/2025 | 07:31:15 | -73.16,-121.85 | 127.19 | 07/20/2025 | 07:32:25 | -73.09,-120.23 | 127.37 | 52.91 | 70 |
| 4 | 07/20/2025 | 08:21:56 | 72.92, 45.98 | 52.55 | 07/20/2025 | 08:23:08 | 72.90, 46.70 | 52.47 | 23.91 | 72 |
| 5 | 07/20/2025 | 09:12:39 | -72.86,-146.58 | 127.51 | 07/20/2025 | 09:13:52 | -72.81,-146.15 | 127.60 | 15.22 | 73 |
| 6 | 07/20/2025 | 10:03:22 | 72.72, 21.02 | 52.35 | 07/20/2025 | 10:04:33 | 72.72, 21.00 | 52.33 | 0.62 | 71 |
| 7 | 07/20/2025 | 10:54:06 | -72.71,-171.65 | 127.66 | 07/20/2025 | 10:55:15 | -72.74,-171.64 | 127.65 | 2.94 | 69 |
| 8 | 07/20/2025 | 11:44:52 | 72.72, -4.36 | 52.37 | 07/20/2025 | 11:45:55 | 72.70, -4.39 | 52.33 | 3.05 | 63 |
| 9 | 07/20/2025 | 12:35:36 | -72.72, 162.97 | 127.64 | 07/20/2025 | 12:36:37 | -72.72, 162.98 | 127.66 | 0.25 | 61 |
| 10 | 07/20/2025 | 13:26:22 | 72.73, -29.75 | 52.38 | 07/20/2025 | 13:27:16 | 72.73, -29.67 | 52.36 | 2.70 | 54 |
| 11 | 07/20/2025 | 14:17:06 | -72.72, 137.59 | 127.62 | 07/20/2025 | 14:17:59 | -72.69, 137.59 | 127.66 | 2.88 | 53 |
| 12 | 07/20/2025 | 15:07:51 | 72.68, -55.03 | 52.35 | 07/20/2025 | 15:08:38 | 72.70, -55.05 | 52.36 | 2.59 | 47 |
| 13 | 07/20/2025 | 15:58:35 | -72.67, 112.31 | 127.66 | 07/20/2025 | 15:59:21 | -72.67, 112.21 | 127.67 | 3.36 | 46 |
| 14 | 07/20/2025 | 16:49:21 | 72.69, -80.41 | 52.36 | 07/20/2025 | 16:50:00 | 72.68, -80.44 | 52.35 | 1.06 | 39 |
| 15 | 07/20/2025 | 17:40:05 | -72.68, 86.92 | 127.64 | 07/20/2025 | 17:40:42 | -72.70, 86.93 | 127.63 | 2.58 | 37 |
| 16 | 07/20/2025 | 18:30:51 | 72.69,-105.79 | 52.38 | 07/20/2025 | 18:31:21 | 72.71,-105.72 | 52.39 | 3.30 | 30 |
| 17 | 07/20/2025 | 19:21:35 | -72.68, 61.54 | 127.62 | 07/20/2025 | 19:22:04 | -72.68, 61.54 | 127.63 | 0.32 | 29 |
| 18 | 07/20/2025 | 20:12:21 | 72.70,-131.18 | 52.40 | 07/20/2025 | 20:12:43 | 72.69,-131.10 | 52.38 | 2.49 | 22 |
| 19 | 07/20/2025 | 21:03:05 | -72.69, 36.16 | 127.61 | 07/20/2025 | 21:03:26 | -72.66, 36.16 | 127.64 | 3.22 | 21 |
| 20 | 07/20/2025 | 21:53:50 | 72.65,-156.45 | 52.36 | 07/20/2025 | 21:54:05 | 72.67,-156.49 | 52.38 | 2.28 | 15 |
| 21 | 07/20/2025 | 22:44:35 | -72.69, 10.78 | 127.59 | 07/20/2025 | 22:44:47 | -72.69, 10.87 | 127.60 | 3.28 | 12 |
| 22 | 07/20/2025 | 23:35:20 | 72.65, 178.16 | 52.38 | 07/20/2025 | 23:35:27 | 72.64, 178.13 | 52.37 | 1.58 | 7 |
| 23 | 07/21/2025 | 00:26:03 | -72.64, -14.50 | 127.63 | 07/21/2025 | 00:26:08 | -72.66, -14.51 | 127.61 | 2.25 | 5 |
| 24 | 07/21/2025 | 01:16:49 | 72.66, 152.78 | 52.40 | 07/21/2025 | 01:16:47 | 72.67, 152.84 | 52.41 | 2.76 | 2 |
| 25 | 07/21/2025 | 02:07:33 | -72.65, -39.89 | 127.61 | 07/21/2025 | 02:07:30 | -72.64, -39.90 | 127.61 | 0.75 | 3 |
| 26 | 07/21/2025 | 02:58:19 | 72.66, 127.40 | 52.42 | 07/21/2025 | 02:58:09 | 72.65, 127.46 | 52.41 | 2.42 | 10 |
| 27 | 07/21/2025 | 03:49:03 | -72.65, -65.27 | 127.59 | 07/21/2025 | 03:48:52 | -72.62, -65.28 | 127.62 | 3.60 | 11 |
| 28 | 07/21/2025 | 04:39:48 | 72.61, 102.12 | 52.38 | 07/21/2025 | 04:39:31 | 72.63, 102.07 | 52.40 | 2.06 | 17 |
| 29 | 07/21/2025 | 05:30:33 | -72.66, -90.65 | 127.57 | 07/21/2025 | 05:30:13 | -72.65, -90.56 | 127.58 | 3.07 | 20 |
| 30 | 07/21/2025 | 06:21:18 | 72.62, 76.73 | 52.40 | 07/21/2025 | 06:20:53 | 72.61, 76.69 | 52.39 | 2.12 | 25 |
| 31 | 07/21/2025 | 07:12:02 | -72.61,-115.93 | 127.61 | 07/21/2025 | 07:11:35 | -72.63,-115.95 | 127.59 | 1.96 | 27 |
| 32 | 07/21/2025 | 08:02:48 | 72.62, 51.35 | 52.42 | 07/21/2025 | 08:02:14 | 72.63, 51.41 | 52.43 | 2.24 | 34 |
| 33 | 07/21/2025 | 08:53:32 | -72.61,-141.31 | 127.59 | 07/21/2025 | 08:52:57 | -72.60,-141.33 | 127.59 | 1.20 | 35 |
| 34 | 07/21/2025 | 09:44:18 | 72.63, 25.97 | 52.44 | 07/21/2025 | 09:43:36 | 72.61, 26.02 | 52.43 | 2.50 | 42 |
| 35 | 07/21/2025 | 10:35:02 | -72.62,-166.70 | 127.57 | 07/21/2025 | 10:34:18 | -72.63,-166.61 | 127.55 | 3.24 | 44 |
| 36 | 07/21/2025 | 11:25:47 | 72.58, 0.69 | 52.40 | 07/21/2025 | 11:24:58 | 72.59, 0.64 | 52.42 | 1.96 | 49 |
| 37 | 07/21/2025 | 12:16:32 | -72.62, 167.92 | 127.55 | 07/21/2025 | 12:15:40 | -72.61, 168.00 | 127.56 | 2.95 | 52 |
| 38 | 07/21/2025 | 13:07:17 | 72.58, -24.69 | 52.42 | 07/21/2025 | 13:06:20 | 72.57, -24.75 | 52.42 | 2.66 | 57 |
| 39 | 07/21/2025 | 13:58:01 | -72.57, 142.64 | 127.59 | 07/21/2025 | 13:57:02 | -72.59, 142.62 | 127.56 | 1.71 | 59 |
| 40 | 07/21/2025 | 14:48:47 | 72.59, -50.08 | 52.44 | 07/21/2025 | 14:47:41 | 72.60, -50.03 | 52.46 | 1.76 | 66 |
| 41 | 07/21/2025 | 15:39:31 | -72.58, 117.26 | 127.57 | 07/21/2025 | 15:38:24 | -72.57, 117.23 | 127.57 | 1.65 | 67 |
| 42 | 07/21/2025 | 16:30:17 | 72.59, -75.46 | 52.45 | 07/21/2025 | 16:29:03 | 72.57, -75.41 | 52.45 | 2.72 | 74 |
| 43 | 07/21/2025 | 17:21:01 | -72.58, 91.88 | 127.56 | 07/21/2025 | 17:19:46 | -72.54, 91.85 | 127.57 | 4.42 | 75 |
| 44 | 07/21/2025 | 18:11:41 | 72.29,-100.23 | 52.14 | 07/21/2025 | 18:10:30 | 72.29,-101.31 | 52.22 | 36.40 | 71 |
| 45 | 07/21/2025 | 19:02:25 | -72.28, 67.10 | 127.87 | 07/21/2025 | 19:01:13 | -72.27, 65.96 | 127.80 | 38.73 | 72 |
| 46 | 07/21/2025 | 19:53:05 | 71.99,-125.02 | 51.82 | 07/21/2025 | 19:51:57 | 72.02,-127.19 | 52.00 | 74.41 | 68 |
| 47 | 07/21/2025 | 20:43:49 | -71.98, 42.31 | 128.19 | 07/21/2025 | 20:42:41 | -71.94, 39.99 | 128.07 | 80.04 | 68 |
Figure of NOAA-21 and METOP-C satellite orbits during SNOs since TLE Epoch: 7/15/2025
Download SNOs between NOAA-21 and METOP-C since TLE EPOCH: 07/15/2025 in txt file.
Historial Predications of SNOs between NOAA-21 and METOP-C